EP2479073B1 - Steering-wheel antitheft device for an automobile - Google Patents

Steering-wheel antitheft device for an automobile Download PDF

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Publication number
EP2479073B1
EP2479073B1 EP20110151740 EP11151740A EP2479073B1 EP 2479073 B1 EP2479073 B1 EP 2479073B1 EP 20110151740 EP20110151740 EP 20110151740 EP 11151740 A EP11151740 A EP 11151740A EP 2479073 B1 EP2479073 B1 EP 2479073B1
Authority
EP
European Patent Office
Prior art keywords
steering
bolt
column
indexer
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20110151740
Other languages
German (de)
French (fr)
Other versions
EP2479073A1 (en
Inventor
Anthony Laval
Lukas Kaliebe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minebea AccessSolutions Deutschland GmbH
Original Assignee
Valeo Sicherheitssysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP20110151740 priority Critical patent/EP2479073B1/en
Application filed by Valeo Sicherheitssysteme GmbH filed Critical Valeo Sicherheitssysteme GmbH
Priority to ES11151740T priority patent/ES2457241T3/en
Priority to PT11151740T priority patent/PT2479073E/en
Priority to PL11151740T priority patent/PL2479073T3/en
Priority to US13/980,059 priority patent/US8978811B2/en
Priority to PCT/EP2012/050113 priority patent/WO2012098016A1/en
Priority to CN201280014116.XA priority patent/CN103502064A/en
Priority to JP2013549764A priority patent/JP2014507324A/en
Publication of EP2479073A1 publication Critical patent/EP2479073A1/en
Application granted granted Critical
Publication of EP2479073B1 publication Critical patent/EP2479073B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/002—Locking of control actuating or transmitting means
    • B60R25/003—Locking of control actuating or transmitting means locking of control actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
    • B60R25/02153—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids comprising a locking member radially and linearly moved towards the steering column
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5611—For control and machine elements
    • Y10T70/5646—Rotary shaft
    • Y10T70/565—Locked stationary
    • Y10T70/5655—Housing-carried lock
    • Y10T70/5664—Latching bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5956—Steering mechanism with switch

Definitions

  • the invention relates to steering column locks of electrically powered type.
  • steering column locks comprising a motor and a gear which causes a locking bolt by a cam or a slope associated with the gear wheel, in which the gear wheel is rotatable about an axis which is parallel to an output axis of the electric motor, or in which the toothed wheel is rotatable about an axis which is perpendicular to the output axis of the electric motor.
  • the bolt then circulates in sliding towards the steering column, under the action of a profile arranged on the toothed wheel, to a locking position of the steering column.
  • the bolt is intended to immobilize the shaft of the column by interlocking in a longitudinal groove formed on the contour of this shaft.
  • the shaft has several grooves distributed angularly on its contour. The parts of the contour of the shaft separating two successive grooves are called teeth.
  • the bolt When the bolt is in the protruding position of cooperation with the contour of the column shaft, it is either fitted into a locking groove of this shaft, or in contact with a tooth. In the latter case, the column tree is not immobilized in rotation.
  • this shaft is automatically immobilized after a short angular stroke thereof having the effect of placing a groove in line with the bolt so as to allow nesting of the latter in this groove.
  • so-called unlocking and locking positions In the case of a motorized steering lock, it is essential to define so-called unlocking and locking positions, to shut down the engine when they are reached.
  • an indexing device and an indexer linked to the bolt that is to say that the engine will be cut only when the bolt has reached the so-called unlocking position or the so-called locking position.
  • locking position because the bolt can be found either on a tooth or in a groove, two choices can be made. The first choice is to define the so-called locking position for a bolt ending in a groove, this position corresponds to the lowest position of the bolt.
  • the object of the invention is to overcome these disadvantages while preserving a compact configuration of steering lock that can be housed in a restricted space in the lower part of the steering column.
  • the invention also relates to a module for assisting the rotation of a steering column comprising an assistance motor applying a pivoting force to the steering column, characterized in that it comprises an antitheft device according to any one according to the preceding features.
  • the invention also relates to an assembly consisting of a steering column of a motor vehicle and an antitheft device according to any preceding characteristic.
  • the invention relates to a combined assembly of a steering column of a motor vehicle and a steering column assistance module according to the preceding features, wherein the steering column comprises a peripheral ring in which engages the bolt in the locking position and the peripheral ring receives a pivoting force of the steering column delivered by the assistance engine.
  • the lock represented on the figure 1a comprises an electric motor 10 provided with an output shaft forming a worm 15, a gear wheel 20 engaged on the worm 15, and a bolt 30 slidably mounted, these various elements being arranged in a housing not shown.
  • the toothed wheel 20 is rotatably mounted about an axis 21 which extends perpendicular to the output shaft of the motor 10 so that the output shaft of the motor is coincident in the geometric plane of the wheel.
  • the wheel 20 has a first face 22, facing a steering column, not shown, which is provided with a cam 23 in the disk portion which cooperates with the bolt.
  • the bolt 30 has, in addition to a main bar 31, a lateral appendage 32 adapted to be interposed, at its first end 33, on the path of the cam 23 when it pivots with the gear wheel 20.
  • the lateral appendage 32 is urged on the cam 23 under the effect of the return spring 40 which recalls the bolt 30 in the locking position.
  • This cooperation of the lateral appendage 32 of the bolt 30 with the cam 23 has the effect of bringing the main bar 31 of an outer ring 50 of the steering column.
  • the cam 23 is replaced by a slope.
  • the antitheft device also comprises a control unit advantageously implemented in the form of an electronic circuit placed in the housing.
  • the control unit also takes into account the information provided by an indexing device.
  • This indexing device informs the motorized driving unit that the toothed wheel has reached a position allowing the main bar 31 of the bolt to ensure the locking and unlocking.
  • the control unit commands the stopping of the engine.
  • This indexing device essentially comprises a movable indexer 60 cooperating with two non-represented sensors, one of which serves for detecting the so-called unlocking position and the other for detecting the so-called locking position.
  • the so-called unlocking position is illustrated in figure 3a and corresponds to a position where the main bar 31 of the bolt 30 is remote from the outer ring of the steering column.
  • the ring 50 of the column consists of grooves 51 surrounded on either side by teeth 52.
  • the locking of the column takes place when the main bar 31 of the bolt 30 is at the bottom of a groove 51, resting in a gap of the ring 50, thus blocking the rotation of the ring 50 and thus of the column.
  • the toothed wheel has arrived at the so-called locking position
  • the main bar 31 of the bolt 30 can be resting on a tooth 52 of the crown 50. This position is called the RTL position (ready to lock ).
  • the mobile indexer 60 advantageously consists of a bar extending longitudinally parallel to the axis of sliding of the bolt 30.
  • a first end 61 of the movable indexer 60 bearing on the cam 23 of the toothed wheel 20.
  • the mobile indexer 60 is maintained, at its first end 61, bearing on the cam 23 by a return spring 62, advantageously arranged on the second end of the mobile indexer 60. It is also on this second end that a magnet 63 is arranged.
  • the two indexing sensors are of the lobby effect or Reed bulb type.
  • there is a boss on the second end of the indexer 60 and the two magnetic sensors are replaced by mechanical switches.
  • the mobile indexer 60 goes under the action of the rotation of the toothed wheel 20 follow the contour of the cam 23 and move in a direction parallel to the sliding direction of the bolt 30.
  • the movable indexer 60 is freely sliding in a groove 34 provided on the lateral appendage 32 of the bolt 30.
  • the antitheft steering column is a constituent element of a motor assistance module to the rotation of the steering column.
  • the fact of integrating the antitheft into a motorized assistance module to the pivoting of the steering column provides an advantage in terms of safety since the antitheft is then in a particularly low part of the column, at particularly great distance from the dashboard where a thief acts by predilection and in a particularly inaccessible part of the vehicle.
  • the motor assistance module comprises an assistance motor 70 which is oriented so that its output shaft 75 extends parallel to the steering column.
  • the output shaft 75 of the motor 70 has a peripheral toothing which meshes with a ring gear 50 surrounding the steering column in order to drive the latter in rotation.
  • the ring gear 50 is advantageously the ring in which the bolt engages so that a single ring gear is used for the two driving and locking functions, further reducing the space required for the implementation of the module. described assistance.
  • the antitheft and the assistance motor are arranged radially opposite the steering column, so that the bolt and the output shaft 75 of the assistance engine do not interfere.
  • the motorized assistance module advantageously comprises the same electronic control unit of the assistance to pivoting and control of the blocking of the column, which ensures that no assistance command is applied to the assistance engine when the antitheft is in locked position.
  • the anti-theft steering column here referenced 71
  • the common steering unit of the motorized assistance and the locking of the column is advantageously equipped with a control logic implementing a slight rotational movement of the steering column when it simultaneously controls a drive force unlocking the bolt.
  • a possible frictional retention is eliminated between the bolt and the steering column, for example between the bolt and a lateral edge of a tooth of the ring gear 50 and the bolt loosely circulates in a reliable manner. each time the vehicle is put into tension.
  • the control unit is advantageously implemented in the form of an electronic circuit placed in a common housing 80 of the assistance engine 70 and the lock 71.
  • the electronic circuit is advantageously positioned outside the case proper to the lock.
  • this control unit takes into account here the positioning of the bolt which is indicated by the receipt of output signals of the positioning sensors of the indexer as described above. .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Description

L'invention concerne les antivols de colonne de direction de type motorisés électriquement.The invention relates to steering column locks of electrically powered type.

On connaît de multiples constructions d'antivols de colonne de direction. Ainsi, on a proposé des antivols de colonne de direction comprenant un moteur et une roue dentée laquelle entraîne un pêne de verrouillage par une came ou une pente associée à la roue dentée, dans lesquels la roue dentée est rotative autour d'un axe qui est parallèle à un axe de sortie du moteur électrique, ou encore dans lesquels la roue dentée est rotative autour d'un axe qui est perpendiculaire à l'axe de sortie du moteur électrique.Multiple constructions of steering column locks are known. Thus, it has been proposed steering column locks comprising a motor and a gear which causes a locking bolt by a cam or a slope associated with the gear wheel, in which the gear wheel is rotatable about an axis which is parallel to an output axis of the electric motor, or in which the toothed wheel is rotatable about an axis which is perpendicular to the output axis of the electric motor.

Le pêne circule alors en coulissement en rapprochement de la colonne de direction, sous l'action d'un profil aménagé sur la roue dentée, jusqu'à une position de verrouillage de la colonne de direction.The bolt then circulates in sliding towards the steering column, under the action of a profile arranged on the toothed wheel, to a locking position of the steering column.

De façon classique, le pêne est destiné à immobiliser l'arbre de la colonne par emboîtement dans une rainure longitudinale ménagée sur le contour de cet arbre. A cet effet, l'arbre comporte plusieurs rainures reparties angulairement sur son contour. Les parties du contour de l'arbre séparant deux rainures successives sont appelées dents. Lorsque le pêne est en position saillante de coopération avec le contour de l'arbre de colonne, il est soit emboîté dans une rainure d'immobilisation de cet arbre, soit en contact avec une dent. Dans ce dernier cas, l'arbre de colonne n'est pas immobilisé en rotation. Toutefois, comme cela est classique, si le volant relié à l'arbre est manoeuvré, cet arbre est automatiquement immobilisé après une brève course angulaire de celui-ci ayant pour effet de placer une rainure au droit du pêne de façon à autoriser l'emboîtement de ce dernier dans cette rainure.Conventionally, the bolt is intended to immobilize the shaft of the column by interlocking in a longitudinal groove formed on the contour of this shaft. For this purpose, the shaft has several grooves distributed angularly on its contour. The parts of the contour of the shaft separating two successive grooves are called teeth. When the bolt is in the protruding position of cooperation with the contour of the column shaft, it is either fitted into a locking groove of this shaft, or in contact with a tooth. In the latter case, the column tree is not immobilized in rotation. However, as is conventional, if the steering wheel connected to the shaft is operated, this shaft is automatically immobilized after a short angular stroke thereof having the effect of placing a groove in line with the bolt so as to allow nesting of the latter in this groove.

Le document EP 1 558 475 B décrit un antivol selon le préambule de la revendication 1.The document EP 1 558 475 B discloses an antitheft device according to the preamble of claim 1.

Dans le cas d'un antivol de direction motorisé, il est indispensable de définir des positions dites de déverrouillage et de verrouillage, pour couper le moteur lorsqu'elles sont atteintes. A cet effet il est prévu un dispositif d'indexage et un indexeur lié au pêne, c'est-à-dire que le moteur ne sera coupé que lorsque le pêne aura atteint la position dite de déverrouillage ou la position dite de verrouillage. Pour ce qui est de la position dite de verrouillage, du fait que le pêne peut se retrouver soit sur un dent soit dans une rainure, deux choix peuvent être opéré. Le premier choix consiste à définir la position dite de verrouillage pour un pêne se retrouvant dans une rainure, cette position correspond à la position la plus basse du pêne. Si, dans cette configuration d'indexation de la position de verrouillage, le pêne se retrouve non pas dans une rainure mais sur une dent, le pêne n'a pas pu atteindre sa position basse et donc la position de verrouillage n' a pas pu être détectée. Le moteur continue donc à tourner. Pour éviter ce phénomène, il est donc préféré de définir la position dite de verrouillage pour un pêne se retrouvant sur une dent. Dans cette configuration d'indexation de la position de verrouillage, le moteur est arrêté pour une position de pêne n'ayant pas atteint le niveau bas c'est-à-dire dans une rainure. Pour compenser cet écart il est prévu de maintenir le moteur en fonctionnement pendant un certain temps. Malheureusement, avec cette rotation supplémentaire, la roue dentée risque d'atteindre sa position de butée et d'entraîner une répétition d'effort mécanique sur cette butée.In the case of a motorized steering lock, it is essential to define so-called unlocking and locking positions, to shut down the engine when they are reached. For this purpose there is provided an indexing device and an indexer linked to the bolt, that is to say that the engine will be cut only when the bolt has reached the so-called unlocking position or the so-called locking position. Regarding the so-called locking position, because the bolt can be found either on a tooth or in a groove, two choices can be made. The first choice is to define the so-called locking position for a bolt ending in a groove, this position corresponds to the lowest position of the bolt. If, in this indexing configuration of the position of lock, the bolt is found not in a groove but on a tooth, the bolt could not reach its low position and therefore the locking position could not be detected. The engine continues to run. To avoid this phenomenon, it is therefore preferred to define the so-called locking position for a bolt on a tooth. In this indexing configuration of the locking position, the motor is stopped for a bolt position having not reached the low level that is to say in a groove. To compensate for this difference, it is planned to keep the motor running for a certain time. Unfortunately, with this additional rotation, the toothed wheel may reach its abutment position and cause a repetition of mechanical force on this stop.

Le but de l'invention est de pallier à ces inconvénients tout en préservant une configuration compacte d'antivol de direction pouvant être logé dans un espace restreint en partie basse de la colonne de direction.The object of the invention is to overcome these disadvantages while preserving a compact configuration of steering lock that can be housed in a restricted space in the lower part of the steering column.

Ce but est atteint selon l'invention grâce à un Antivol motorisé de colonne de direction de véhicule automobile selon la revendication 1.This object is achieved according to the invention by means of a motor vehicle steering column anti-theft device according to claim 1.

Un antivol selon l'invention peut également présenter une ou plusieurs des caractéristiques ci-dessous, considérées individuellement ou selon toutes les combinaisons techniquement possibles :

  • l'indexeur comprend un aimant et le dit au moins un capteur est un capteur à effet hall.
  • le capteur est un commutateur mécanique et en ce que l'indexeur est muni d'un élément de surface apte à coopérer avec le dit au moins un commutateur mécanique.
  • le ressort de rappel du pêne est monté entre le pêne et un élément fixe de l'antivol de sorte que la compression du ressort ne dépend pas d'une position relative du pêne et de l'indexeur mobile.
  • l'arbre de sortie du moteur, la direction de déplacement du pêne et la direction de déplacement de l'indexeur mobile sont parallèles.
  • le pêne et l'indexeur mobile appuient sur le profil de la roue dentée depuis le même côté dudit profil et se déplacent dans le même sens à l'encontre du profil.
An antitheft according to the invention may also have one or more of the following characteristics, considered individually or in any technically possible combination:
  • the indexer comprises a magnet and the said at least one sensor is a hall effect sensor.
  • the sensor is a mechanical switch and in that the indexer is provided with a surface element capable of cooperating with said at least one mechanical switch.
  • the bolt return spring is mounted between the bolt and a fixed element of the lock so that the compression of the spring does not depend on a relative position of the bolt and the movable indexer.
  • the output shaft of the motor, the direction of movement of the bolt and the direction of movement of the mobile indexer are parallel.
  • the bolt and the mobile indexer press on the profile of the toothed wheel from the same side of said profile and move in the same direction against the profile.

L'invention concerne également un module d'assistance à la rotation d'une colonne de direction comprenant un moteur d'assistance appliquant une force de pivotement à la colonne de direction, caractérisé en ce qu'il comprend un antivol selon l'une quelconque selon les caractéristiques précédentes.The invention also relates to a module for assisting the rotation of a steering column comprising an assistance motor applying a pivoting force to the steering column, characterized in that it comprises an antitheft device according to any one according to the preceding features.

L'invention concerne aussi un ensemble constitué d'une colonne de direction de véhicule automobile et d'un antivol selon l'une quelconque caractéristiques précédentes.The invention also relates to an assembly consisting of a steering column of a motor vehicle and an antitheft device according to any preceding characteristic.

L'invention concerne enfin un ensemble combiné d'une colonne de direction de véhicule automobile et d'un module d'assistance à la rotation de la colonne de direction selon les caractéristiques précédentes, dans lequel la colonne de direction comprend une couronne périphérique dans laquelle s'engage le pêne en position de verrouillage et la couronne périphérique reçoit une force de pivotement de colonne de direction délivrée par le moteur d'assistance.Finally, the invention relates to a combined assembly of a steering column of a motor vehicle and a steering column assistance module according to the preceding features, wherein the steering column comprises a peripheral ring in which engages the bolt in the locking position and the peripheral ring receives a pivoting force of the steering column delivered by the assistance engine.

D'autres caractéristiques, buts et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, faite en référence aux figures annexées sur lesquelles :

  • la figure 1a est une vue d'un antivol selon un mode préféré de l'invention dans une configuration de déverrouillage de la colonne de direction du véhicule;
  • la figure 1b est une vue d'un antivol selon un mode préféré de l'invention dans une configuration de verrouillage de la colonne de direction du véhicule ;
  • la figure 1c est une vue d'un antivol selon un mode préféré de l'invention dans une configuration intermédiaire de verrouillage de la colonne de direction du véhicule ;
  • la figure 2a est une vue de la colonne en position déverrouillée,
  • la figure 2b est une vue de la colonne en position verrouillé,
  • la figure 2c est une vue de la colonne en position RTL (ready to lock).
  • La figure 3 est une vue représentant un ensemble combiné consituté d'une colonne de direction et d'un module d'assistance à la rotation de la colonne de direction selon un mode préféré de réalisation de l'invention.
Other characteristics, objects and advantages of the invention will appear on reading the detailed description which follows, made with reference to the appended figures in which:
  • the figure 1a is a view of an antitheft according to a preferred embodiment of the invention in an unlocking configuration of the steering column of the vehicle;
  • the figure 1b is a view of a lock according to a preferred embodiment of the invention in a locking configuration of the steering column of the vehicle;
  • the figure 1c is a view of a lock according to a preferred embodiment of the invention in an intermediate locking configuration of the steering column of the vehicle;
  • the figure 2a is a view of the column in unlocked position,
  • the figure 2b is a view of the column in locked position,
  • the Figure 2c is a view of the column in RTL (ready to lock) position.
  • The figure 3 is a view showing a combined set consituté a steering column and a steering column assistance module according to a preferred embodiment of the invention.

L'antivol représenté sur la figure 1a comprend un moteur électrique 10 muni d'un arbre de sortie formant une vis sans fin 15, une roue dentée 20 engrenée sur la vis sans fin 15, et un pêne 30 monté à coulissement, ces différents éléments étant disposés dans un boîtier non représenté.The lock represented on the figure 1a comprises an electric motor 10 provided with an output shaft forming a worm 15, a gear wheel 20 engaged on the worm 15, and a bolt 30 slidably mounted, these various elements being arranged in a housing not shown.

La roue dentée 20 est montée à rotation autour d'un axe 21 lequel s'étend perpendiculairement à l'arbre de sortie du moteur 10 de sorte que l'arbre de sortie du moteur se trouve confondu dans le plan géométrique de la roue.The toothed wheel 20 is rotatably mounted about an axis 21 which extends perpendicular to the output shaft of the motor 10 so that the output shaft of the motor is coincident in the geometric plane of the wheel.

La roue 20 présente un première face 22, tournée vers une colonne de direction non représentée, laquelle est munie d'une came 23 en portion de disque laquelle coopère avec le pêne. A cet effet, le pêne 30 présente, outre un barreau principal 31, un appendice latéral 32 apte à venir s'interposer, au niveau de sa première extrémité 33, sur le trajet de la came 23 lorsque celle-ci pivote avec la roue dentée 20. L'appendice latéral 32 est poussé en appui sur la came 23 sous l'effet du ressort de rappel 40 qui rappelle le pêne 30 en position de verrouillage. Cette coopération de l'appendice latéral 32 du pêne 30 avec la came 23 a donc pour effet de rapprocher le barreau principal 31 d'une couronne 50 extérieure de la colonne de direction.The wheel 20 has a first face 22, facing a steering column, not shown, which is provided with a cam 23 in the disk portion which cooperates with the bolt. For this purpose, the bolt 30 has, in addition to a main bar 31, a lateral appendage 32 adapted to be interposed, at its first end 33, on the path of the cam 23 when it pivots with the gear wheel 20. The lateral appendage 32 is urged on the cam 23 under the effect of the return spring 40 which recalls the bolt 30 in the locking position. This cooperation of the lateral appendage 32 of the bolt 30 with the cam 23 has the effect of bringing the main bar 31 of an outer ring 50 of the steering column.

Dans un mode de réalisation alternatif non représenté, la came 23 est remplacée par une pente.In an alternative embodiment not shown, the cam 23 is replaced by a slope.

L'antivol comprend également une unité de pilotage avantageusement implémentée sous forme d'un circuit électronique placé dans le boîtier. Outre la mise en oeuvre du pilotage de du moteur électrique 10, l'unité de pilotage prend également en compte les informations fournies par un dispositif d'indexation.The antitheft device also comprises a control unit advantageously implemented in the form of an electronic circuit placed in the housing. In addition to the control unit of the electric motor 10, the control unit also takes into account the information provided by an indexing device.

Ce dispositif d'indexation permet d'informer l'unité de pilotage motorisée que la roue dentée a atteint une position permettant au barreau principal 31 du pêne d'assurer le verrouillage et le déverrouillage. En réponse à cette information, l'unité de pilotage commande l'arrêt du moteur.This indexing device informs the motorized driving unit that the toothed wheel has reached a position allowing the main bar 31 of the bolt to ensure the locking and unlocking. In response to this information, the control unit commands the stopping of the engine.

Ce dispositif d'indexation comprend essentiellement un indexeur mobile 60 coopérant avec deux capteurs non représentés dont un sert à la détection de la position dite de déverrouillage et l'autre à la détection de la position dite de verrouillage.This indexing device essentially comprises a movable indexer 60 cooperating with two non-represented sensors, one of which serves for detecting the so-called unlocking position and the other for detecting the so-called locking position.

La position dite de déverrouillage est illustrée en figure 3a et correspond à une position où le barreau principal 31 du pêne 30 est éloigné de la couronne extérieure de la colonne de direction. Comme on peut le voir également sur les figures 3b et 3c, la couronne 50 de la colonne est constituée de rainures 51 entourées de part et d'autre par des dents 52. Le verrouillage de la colonne s'opère lorsque le barreau principal 31 du pêne 30 se trouve au fond d'une rainure 51, en appui dans un interstice de la couronne 50, bloquant ainsi la rotation de la couronne 50 et donc de la colonne. Dans certaines conditions, bien que la roue dentée soit arrivée à la position dite de verrouillage, le barreau principal 31 du pêne 30 peut se retrouver en appui sur une dent 52 de la couronne 50. Cette position est appelée la position RTL (ready to lock). En effet, dans cette position la rotation de la colonne est possible. Toutefois, comme cela est classique, si le volant relié à la colonne est manoeuvré, une brève course angulaire de celui-ci aura pour effet de placer une rainure 51 au droit du barreau principal 31 du pêne 30 de façon à autoriser l'emboîtement de ce dernier dans cette rainure 51. Cet emboîtement sera opéré à l'aide du ressort de rappel 40 du pêne.The so-called unlocking position is illustrated in figure 3a and corresponds to a position where the main bar 31 of the bolt 30 is remote from the outer ring of the steering column. As can be seen also on the Figures 3b and 3c , the ring 50 of the column consists of grooves 51 surrounded on either side by teeth 52. The locking of the column takes place when the main bar 31 of the bolt 30 is at the bottom of a groove 51, resting in a gap of the ring 50, thus blocking the rotation of the ring 50 and thus of the column. Under certain conditions, although the toothed wheel has arrived at the so-called locking position, the main bar 31 of the bolt 30 can be resting on a tooth 52 of the crown 50. This position is called the RTL position (ready to lock ). Indeed, in this position the rotation of the column is possible. However, as is conventional, if the steering wheel connected to the column is operated, a short angular stroke thereof will have the effect of placing a groove 51 to the right of the main bar 31 of the bolt 30 so as to allow the interlocking of the latter in this groove 51. This interlocking will be operated using the return spring 40 of the bolt.

L'indexeur mobile 60 est avantageusement constitué d'un barreau s'étendant longitudinalement parallèlement à l'axe de coulissement du pêne 30. Une première extrémité 61 de l'indexeur mobile 60 étant en appui sur la came 23 de la roue dentée 20. L'indexeur mobile 60 est maintenu, au niveau de sa première extrémité 61, en appui sur la came 23 par un ressort de rappel 62,avantageusement disposé sur la deuxième extrémité de l'indexeur mobile 60. C'est également sur cette deuxième extrémité qu'est disposé un aimant 63. Dans ce cas les deux capteurs d'indexation sont du type effet hall ou ampoule Reed. Dans un mode de réalisation alternatif, on dispose un bossage sur la deuxième extrémité de l'indexeur 60, et les deux capteurs magnétiques sont remplacés par des commutateurs mécaniques. Ainsi configuré, l'indexeur mobile 60 va sous l'action de la rotation de la roue denté 20 suivre le contour de la came 23 et se déplacer dans une direction parallèle à la direction de coulissement du pêne 30.The mobile indexer 60 advantageously consists of a bar extending longitudinally parallel to the axis of sliding of the bolt 30. A first end 61 of the movable indexer 60 bearing on the cam 23 of the toothed wheel 20. The mobile indexer 60 is maintained, at its first end 61, bearing on the cam 23 by a return spring 62, advantageously arranged on the second end of the mobile indexer 60. It is also on this second end that a magnet 63 is arranged. In this case the two indexing sensors are of the lobby effect or Reed bulb type. In an alternative embodiment, there is a boss on the second end of the indexer 60, and the two magnetic sensors are replaced by mechanical switches. Thus configured, the mobile indexer 60 goes under the action of the rotation of the toothed wheel 20 follow the contour of the cam 23 and move in a direction parallel to the sliding direction of the bolt 30.

Dans un mode de réalisation avantageux, notamment pour des besoins de compacité, l'indexeur mobile 60 est disposé coulissant librement dans une gorge 34 aménagée sur l'appendice latéral 32 du pêne 30.In an advantageous embodiment, particularly for compactness requirements, the movable indexer 60 is freely sliding in a groove 34 provided on the lateral appendage 32 of the bolt 30.

Partant d'une position déverrouillée illustrée figures 1a et 2a, et pour atteindre une position verrouillée illustrée figures 1b et 2b ou figures 1c et 2c, la roue dentée 20 va tourner dans le sens horaire. L'extrémité 33 de l'appendice latéral 32 du pêne 30 et l'extrémité 61 de l'indexeur mobile vont dans un premier temps suivre toutes les deux le contour de la came 23, et entraîner respectivement le pêne 30 et l'indexeur mobile 60 dans un coulissement parallèle suivant le même sens. Comme illustré sur les figure 1c et 2c, du fait que l'indexeur mobile 60 coulisse librement dans gorge 34 aménagée sur l'appendice latéral 32 du pêne 30, l'indexeur mobile 60 pourra atteindre la position dite de verrouillage alors que le barreau 31 est en position RTL (ready to lock), le moteur recevra alors une information d'arrêt par l'intermédiaire d'un des capteurs du dispositif d'indexation.Starting from an unlocked position illustrated figures 1a and 2a , and to reach an illustrated locked position figures 1b and 2b or figures 1c and 2c the toothed wheel 20 will rotate clockwise. The end 33 of the lateral appendage 32 of the bolt 30 and the end 61 of the mobile indexer will initially follow both the contour of the cam 23, and respectively cause the bolt 30 and the movable indexer 60 in a parallel sliding in the same direction. As illustrated on figure 1c and 2c , because the movable indexer 60 slides freely in groove 34 arranged on the lateral appendage 32 of the bolt 30, the movable indexer 60 can reach the so-called locking position while the bar 31 is in position RTL (ready to lock ), the engine will then receive stop information via one of the sensors of the indexing device.

Dans un mode de réalisation avantageux, l'antivol de colonne de direction est un élément constitutif d'un module d'assistance motorisée à la rotation de la colonne de direction. Le fait d'intégrer l'antivol dans un module d'assistance motorisée au pivotement de la colonne de direction apporte un avantage en termes de sécurité puisque l'antivol se trouve alors dans une partie particulièrement basse de la colonne, à distance particulièrement grande du tableau de bord où un voleur agit par prédilection et dans une partie particulièrement inaccessible du véhicule.In an advantageous embodiment, the antitheft steering column is a constituent element of a motor assistance module to the rotation of the steering column. The fact of integrating the antitheft into a motorized assistance module to the pivoting of the steering column provides an advantage in terms of safety since the antitheft is then in a particularly low part of the column, at particularly great distance from the dashboard where a thief acts by predilection and in a particularly inaccessible part of the vehicle.

Tel qu'illustré sur la figure 3, dans ce cas le module d'assistance motorisée comprend un moteur d'assistance 70 lequel est orienté de telle sorte que son arbre de sortie 75 s'étend parallèlement à la colonne de direction. L'arbre de sortie 75 du moteur 70 présente une denture périphérique laquelle engrène une couronne dentée 50 entourant la colonne de direction afin d'entraîner celle-ci en rotation. La couronne dentée 50 est avantageusement la couronne dans laquelle s'engage le pêne de sorte qu'une seule couronne dentée est utilisée pour les deux fonctions d'entraînement et de blocage, réduisant encore l'encombrement nécessaire à l'implémentation du module d'assistance décrit.As illustrated on the figure 3 in this case the motor assistance module comprises an assistance motor 70 which is oriented so that its output shaft 75 extends parallel to the steering column. The output shaft 75 of the motor 70 has a peripheral toothing which meshes with a ring gear 50 surrounding the steering column in order to drive the latter in rotation. The ring gear 50 is advantageously the ring in which the bolt engages so that a single ring gear is used for the two driving and locking functions, further reducing the space required for the implementation of the module. described assistance.

Avantageusement, l'antivol et le moteur d'assistance sont disposés de manière radialement opposée à la colonne de direction, de sorte que le pêne et l'arbre de sortie 75 du moteur d'assistance n'interfèrent pas. Le module d'assistance motorisée comprend avantageusement une même unité électronique de pilotage de l'assistance au pivotement et de commande du blocage de la colonne, laquelle assure qu'aucune commande d'assistance n'est appliquée au moteur d'assistance lorsque l'antivol est en position verrouillée.Advantageously, the antitheft and the assistance motor are arranged radially opposite the steering column, so that the bolt and the output shaft 75 of the assistance engine do not interfere. The motorized assistance module advantageously comprises the same electronic control unit of the assistance to pivoting and control of the blocking of the column, which ensures that no assistance command is applied to the assistance engine when the antitheft is in locked position.

Par le fait que l'antivol de colonne de direction, ici référencé 71, est une partie du module d'assistance motorisée à la rotation colonne de direction, l'unité de pilotage commune de l'assistance motorisée et du verrouillage de la colonne est avantageusement équipée d'une logique de commande mettant en oeuvre un léger mouvement de rotation de la colonne de direction lorsqu'elle commande simultanément un effort d'entraînement en déverrouillage du pêne. Ainsi, par ce léger mouvement, une éventuelle retenue en frottement est supprimée entre le pêne et la colonne de direction, par exemple entre le pêne et une bordure latérale d'une dent de la couronne dentée 50 et le pêne circule en coulissement de manière fiabilisée à chaque mise en tension du véhicule.In that the anti-theft steering column, here referenced 71, is a part of the power assistance module to the steering column rotation, the common steering unit of the motorized assistance and the locking of the column is advantageously equipped with a control logic implementing a slight rotational movement of the steering column when it simultaneously controls a drive force unlocking the bolt. Thus, by this slight movement, a possible frictional retention is eliminated between the bolt and the steering column, for example between the bolt and a lateral edge of a tooth of the ring gear 50 and the bolt loosely circulates in a reliable manner. each time the vehicle is put into tension.

L'unité de pilotage est avantageusement implémentée sous forme d'un circuit électronique place dans un boîtier commun 80 du moteur d'assistance 70 et de l'antivol 71. Le circuit électronique est avantageusement positionné en dehors du boîtier propre à l'antivol. Outre la mise en oeuvre du pilotage de l'antivol par cette unité de pilotage prend notamment ici en compte le positionnement du pêne qui lui est indiqué par la réception de signaux de sortie des capteurs de positionnement de l'indexeur tels que décris ci-avant.The control unit is advantageously implemented in the form of an electronic circuit placed in a common housing 80 of the assistance engine 70 and the lock 71. The electronic circuit is advantageously positioned outside the case proper to the lock. In addition to implementing control of the antitheft by this control unit takes into account here the positioning of the bolt which is indicated by the receipt of output signals of the positioning sensors of the indexer as described above. .

Bien entendu, on pourra apporter à l'invention de nombreuses modifications sans sortir du cadre de celle-ci.Of course, we can bring to the invention many changes without departing from the scope thereof.

Claims (9)

  1. Motorized steering-column lock for a motor vehicle capable of adopting a locked configuration and an unlocked configuration of the steering column of the vehicle, said steering-column lock comprising:
    - an electric motor (10) furnished with an output shaft forming a worm (15),
    - a gearwheel (20) engaged on the worm (15),
    - at least one profile (23) placed on at least one face of the gearwheel (20),
    - a bolt (30) that can move between a locked position and an unlocked position of the steering column, said bolt comprising:
    - a main bar (31) of which one end interacts with an element of the steering column in the locked position,
    - the bolt interacting with said profile (23) of the gearwheel such that the profile (23) drives the bolt between the locked position and the unlocked position of the column,
    - a return spring (40) for returning the bolt (30) to the locked position,
    - a movable indexer (60) interacting with at least one sensor in order to detect a position of the profile controlling a locked configuration of the column of the steering lock,
    characterized in that the movable indexer (60) is translatably mounted in a channel (34) arranged on the bolt (30) and interacts with said profile (23) of the gearwheel (20), said movable indexer (60) being returned in interaction with said profile (23) by a return spring (62), the return spring (62) of the indexer (60) and the return spring (40) of the bolt (30) being distinct.
  2. Steering-column lock according to Claim 1, characterized in that the indexer (60) comprises a magnet (63) and in that said at least one sensor is a Hall effect sensor.
  3. Steering-column lock according to Claim 1, characterized in that said at least one sensor is a mechanical commutator and in that the indexer (60) is furnished with a surface element capable of interacting with said at least one mechanical commutator.
  4. Steering-column lock according to one of the preceding claims, characterized in that the return spring (40) of the bolt (30) is mounted between the bolt (30) and a fixed element of the steering lock such that the compression of the spring (40) does not depend on a relative position of the bolt (30) and of the movable indexer (60).
  5. Steering-column lock according to one of the preceding claims, characterized in that the output shaft of the motor, the direction of movement of the bolt and the direction of movement of the movable indexer are parallel.
  6. Steering-column lock according to one of the preceding claims, characterized in that the bolt (30) and the movable indexer (60) rest on the profile (23) of the gearwheel (20) from the same side of said profile (23) and move in the same direction against the profile (23).
  7. Module for assisting the rotation of a steering column, comprising an assistance motor (70) applying a pivoting force to the steering column, characterized in that it comprises a steering-column lock according to any one of the preceding claims.
  8. Assembly consisting of a steering column of a motor vehicle and a steering lock according to any one of Claims 1 to 6.
  9. Combined assembly of a steering column of a motor vehicle and a module (70, 80) for assisting the rotation of the steering column according to Claim 7, wherein the steering column comprises a peripheral ring gear (50) in which the bolt is engaged in the locked position and the peripheral ring gear (50) receives a steering-column pivoting force delivered by the assistance motor (70).
EP20110151740 2011-01-21 2011-01-21 Steering-wheel antitheft device for an automobile Active EP2479073B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES11151740T ES2457241T3 (en) 2011-01-21 2011-01-21 Steering theft for motor vehicle
PT11151740T PT2479073E (en) 2011-01-21 2011-01-21 Steering-wheel antitheft device for an automobile
PL11151740T PL2479073T3 (en) 2011-01-21 2011-01-21 Steering-wheel antitheft device for an automobile
EP20110151740 EP2479073B1 (en) 2011-01-21 2011-01-21 Steering-wheel antitheft device for an automobile
US13/980,059 US8978811B2 (en) 2011-01-21 2012-01-04 Antitheft device for the steering mechanism of a motor vehicle
PCT/EP2012/050113 WO2012098016A1 (en) 2011-01-21 2012-01-04 Antitheft device for the steering mechanism of a motor vehicle
CN201280014116.XA CN103502064A (en) 2011-01-21 2012-01-04 Antitheft device for the steering mechanism of a motor vehicle
JP2013549764A JP2014507324A (en) 2011-01-21 2012-01-04 Electric steering column lock device for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110151740 EP2479073B1 (en) 2011-01-21 2011-01-21 Steering-wheel antitheft device for an automobile

Publications (2)

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EP2479073A1 EP2479073A1 (en) 2012-07-25
EP2479073B1 true EP2479073B1 (en) 2014-01-15

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EP20110151740 Active EP2479073B1 (en) 2011-01-21 2011-01-21 Steering-wheel antitheft device for an automobile

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US (1) US8978811B2 (en)
EP (1) EP2479073B1 (en)
JP (1) JP2014507324A (en)
CN (1) CN103502064A (en)
ES (1) ES2457241T3 (en)
PL (1) PL2479073T3 (en)
PT (1) PT2479073E (en)
WO (1) WO2012098016A1 (en)

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CN103502064A (en) 2014-01-08
PT2479073E (en) 2014-04-10
EP2479073A1 (en) 2012-07-25
US8978811B2 (en) 2015-03-17
PL2479073T3 (en) 2014-06-30
US20140124282A1 (en) 2014-05-08
ES2457241T3 (en) 2014-04-25
JP2014507324A (en) 2014-03-27
WO2012098016A1 (en) 2012-07-26

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